The invention relates to the field of food processing, and particularly discloses a sunflower disk threshing device. The whole device can directly thresh a sunflower disk which is not aired, and can dry sunflower seeds at the same time of threshing the sunflower disk, thereby effectively reducing the humidity of the sunflower seeds and preventing the sunflower seeds from getting mildewed; and a multifunctional rod and a sleeve rod can collect a liquid in the sunflower disk, thereby fully utilizing the sunflower disk. According to the scheme, quick drying and threshing can be performed on the sunflower disk.